<template>
    <div>message的值:{{ message }}</div>
    <div>obj.message的值:{{ obj.message }}</div>
</template>
<script setup>
import{reactive,toRefs}from'vue'
const obj =reactive({message:'盛年不重来，一日难再晨'})
let{message}=toRefs(obj)
setTimeout(()=>{
    message.value='及时当勉励，岁月不饶人'
},2000)
</script>